Locomotive.



G. R. HENDERSON. LOOOMOTIVE.

APPLICATION FILED JUNE 12, 1911.

Patented Jan. 2, 1912.

7 SHBETSSHEET 1.

G. R. HENDERSON.

LOGOMOTIVE.

APPLIOATION FILED JUNE 12, 1911 Patented Jan. 2, 1912.

7 SHEETS-SHEET 2.

G. R. HENDERSON.

LOGOMOTIVE.

APPLIOATION FILED JUNE 12, 1911.

1,013,771. Patented Jan. 2, 1912.

' 7 SHEE.TSSHEET s.

5 6x6565 Faorg 7T, Hendvaaw.

G. R. HENDERSON. LOGOMOTIVB.

I APPLICATION FILED JUNE 12, 1911. 1,013,771 Patented Jan.2, 1912.

7 SHEETSSHEET 4.

Imam/Z011 G. R. HENDERSON.

LOGOMOTIVE.

APILIGATION FILED JUNE 12, 1911.

Patented Jan. 2, 1912.

7 SHEETS-SHEET 5.

G. R. HENDERSON.

LOGOMOTIVE.

APPLIOATION FILED JUNE 12, 1911.

Patented Jan. 2, 1912.

7 SHEETS -SHEETfi.

G. R. HENDERSON. LOGOMOTIVE. 1,01 3,771.

APPLICATION FILED JUNE 12, 1911.

Patented Jan. 2, 1912.

7 SHEETS-SHBET 7.

Invcniar- George TZHCncZenfi UNI E STATES PATENT oEEIoE.

GEORGE E. nENDEEsoN,.oE PHILADELPHIA, EENNsYLvANm, AssIeNon; BY M s'NEASSIGNMENTS, TO THE BALDWIN nocomorrvn wonxs, or PHILADEL PENN-SYLVANIA, A CORPORATION 01' PENNSYLVANIA."

Locomo'rrvE.

Specification of Letters Patent.

Patented Jan. 2], 1912.

Application filed June 12, 1911. Serial No. 632,727.

.ments in compound locomotives, especially of the type in which thelocomotive boiler extends over two frames, which: are coupled togetherby an articulated joint. In this type of locomotive the usual practicehas been to use anordinary tender and these'loi comotives are now ofsuch size thatthe tender must be of an appropriate size and, con-'tofore used. I

One object of the invention is to utilize a large portion, or all, ofthe weight of the tender for purposes of adhesion and traction, as wellas-the weight of thelocomotive proper. This object I attain by mountingthe tender on a driven element correspond- Y ing in many parts to thetwo elements on which the locomotive boiler is mounted so that, in thepresent instance, there are three independent driving units to form atriple, compound locomotive.

Afurther object of the invention is to desi 11 the locomotive so thatall the cylinders Wlll preferably be of the same diameter and to directthe exhaust from the high pressure cylinder to the two low pressurecylinders, one at the forward end of the locomotive and the other at thetender.

In the accompanying drawings :Figure 1, is a side view, .in outline,illustrating my invention; Figs. 2 to 5, inclusive, illustrate fractionsof the locomotive, in the order of numbering, drawn to'an enlargedscale; Fig. 6, -is a transverse, "sectional view on the line 55, Fig. 2;Fig. 7, is a transverse, sectional view on the line 6--6, Fig. 3, andFig. 8, is a rear elevation.

Referring to the drawings, A is the forward frame of the locomotlve andA is the intermediate frame. These two frames are connected by anarticulated or hinged joint at a, which is the common method ofconnecting the two frames of an ordinary articulated locomotive.

A is the rear frame of the locomotive, connected to the intermediateframe A by an articulated joint a, which may be similar to the joint a.Mounted rigidly, in the present instance, upon the intermediate frame Ais the boiler B. .This boiler extends over the forward frame A and has asliding support thereon; so that, when the locomotive is turning curves,the frame A may have a lateral movement independently of the boiler Band the intermedlate frame A. At the rear endof the boiler is the usualcab b for the engine driver and this cab terminates substantially on aline with the articulated joint coupling the. intermediate frame A withthe rear frame A". The rear frame A of the locomotive is, in fact, thetender of the locomotive, having the tank 0 and the space for the fuel.

The boiler, while shown as a continuous boiler rigidl supported ofitheintermediate frame and reely overhanging the forward frame, may be madein two sections; each section rigidly mounted on its frame and connectedtogether by a flexible joint. The boiler may be used entirely for thegeneration of steam, or it may be used partly for the generation ofsteam and partly for superheating, or heating the feed water with whichthe boiler is supplied.

D are the hi h pressure cylinders, one located on each side of theintermediate frame A of the locomotive and E and F are the low pressurecylinders, one on each side of the frames A and A The cylinders D havevalve chests of the ordinary type and steam is supplied to the cylindersdirectly from the steam dome b of the locomotive boiler through thepipes b one at each side of the boiler. The exhaust ports of thecylinders D communicate with the steam space of the two low pressurecylinders E and Fvon each side of the locomotive and e is a pipe leadingto the steam space of the cylinder E. f is apipe leading. to the steamspace of the cylinder F. The pipe 6 is preferably coupled on a line withthe pivot a by a ball and from the cylinder D, while the pipe f, whichis on the tender frame A, is connected to a fixed pipe f in theintermediate frame A by a flexible connection f on a line with the pivota. By this construction, live steam is supplied to the cylinders D onthe intermediate frame and the exhaust steam from these cylinders isdivided; part passing to the low pressure cylinder E on the forwardframe of the locomotive, and part passing to the. cylinder F on the rearor tender frame of the locomotive. The exhaust from the low pressure,cylinder E. passes through a pipe 9 into the smoke box and escapesthrough the usual nozzle direct to the stack, while the exhaust from thecylinder F passes through a pipe H projecting np wa rdly at the rear ofthe tender and this pipe terminates at a point preferably above the topof the tender, and, in fact, above the top of the cars ofthe train.

.In the present instance, the intermediate frame A is mounted on eightdriving wheels at, four on each side, and these driv- I ing wheels areall coupled to the piston of the engine in the ordinary manner. The

front frame is mounted on eight driving wheels m-four on a side-and atwo wheel radial truck of the ordinary type. The rear tender frame isalso mounted. on eight wheels p and connected in the ordinary manner tothe piston in the cylinderF and at the rear of the frame is a two-wheelradial truck 7), similar to the truck m in the present instance. Theordina type of equalizing beams is used throug out. The valve motionforthe three sets of cylinders is operated by means of a power mechanismcontrolled from the cab so that all the valve motions can be operateduniformly and together.

The locomotive, as illustrated, shows an equal number of drivi truck ateach end of the cylinders of the same size, which gives a ratio of comounding 2 and it is evident that these cy inders may be made ofdifferent diameters and that any combination of driving wheels and truckWheels maybe used'in order to obtain any particular weightand'arrangement of engine desired.

The-engine can be run either forward or backward with equaleffectiveness, as the rear frame is coupled to the intermediate frame inthe same manner as the forward frame. 1 The boiler can be made, asabove'remarked, in a single shell and has flexible or articulated steampipes so that when steam at a greatly reduced pressure is used thedifficulty of maintaining the same is proportionately reduced.

In order to provide means for applying sand to the tracks, when thelocomotive is running backward, I provide, in the present instance, asand box 9 at the rear of the tender, and this sand box preferably sur-.

rounds the exhaust pipe, or is located in contact with one side of theexhaust pipe, as clearly shown in Fig. 8, so as to heat the sand to theproper temperature.

It will be understood that in some instances the high pressure steam maybe used in all of the cylinders, if considered desirable,

wheels under each of the four-sections w1th a twowheeled of thelocomotive being. similar to thehigh pressure cylinderthus economizingconsiderably n the construction and gaining a result which will utilizea large proportion of adhesion .and traction, as well as the weight ofthe locomotive proper.

'When I' use the term tender asapplied to. the locomotive, I mean an.independent frame connected to thelocomotive having either the usualwater-tank and fuel connection, or any'equivalent, whereby the -frame issufiiciently weighted to give the driving wheels the necessary adhesion,and I may, in some instances, so construct the 10- comotive that asingle frame carries the boiler, driven by high pressure or compoundcylinders and a tender frame independently driven and having lowpressure cylinders receiving steam from either the high pressurecylinder or the low pressure cylinder of the locomotive frame.

In some instances, where a large engine is desired, more than threeframes may be used, each independently driven, without departing fromthe essential features of the invention.

The exhaust from the cylinders mounted on the tender frame may beallowed to escape to the atmosphere, or may be utilized to heat thetrain, or to heat the tender water, or for other purposes where amoderate heat is desired. If the tender water is heated a pump will thenbe used to supply the boiler,

connected by ball joints and one o the sec-- tions is arranged to slidein the other.

Other connectionsmay be used without departing from the essentialfeatures of the invention.

I-claim:

1. The combination in a compound articulated locomotive, of a series offrames; pivots connecting the said frames; a set of driving wheels foreach frame; a pair'of cylindcrs on each frame and through which thewheels-are driven; a boiler located above two of the frames; a tendermounted on the I other frame; steam pipes leading from the boiler to thecylinders on one frame an pipes leading from said. cylinders to thecylinders on the other two frames. 2. The combination in a, com oundarticulated locomotive, of a series 0 frames pivotally connected; aboiler fixed to the intermediate frame and overhanging the forwardframe; a tender carried by the rear frame; cylinders on the front end ofthe forward frame and on the front end of the intermediate frame also onthe rear end of the rear frame; pipes leading from the steam dome of theboiler to the cylinders on the intermediate frame and pipes leading fromthe exhaust chambers of the cylinders on the intermediate frames to thesteam space in the cylinders onthe forward and rear frames, and drivingWheels on each frame driven from the cylinders on said frames.

3. The combination in a compound articulated locomotive, of a series offrames pivotally connected; independent driving wheels carrying each ofsaid frames; cylinders on each frame; a boiler extending over two of theframes; a tender mounted on the other frame; a radial truck at theforward end of the forward frame and at the rearend of the rear frame;and means for supplying steam from the boiler to the several cylinders.

4. The combination in an articulated locomotive, of a series of framespivotally conne'cted; driving wheels supporting each frame; cylinderscarried by each frame and through which the wheels are driven; a boilerextending over the forward and the intermediate frames; a tender mountedon the rear frame pipes supplying steam from the boiler to the cylinderson the intermediate frame; pipes extending from the exhaust space ofsaid cylinders to the steam space'of the cylinders on the forward andrear frames; an exhaust pipe leading from the cylinder frame to thestack of the locomotive; and a pipe extending at the end of the tenderand communicating with the exhaust space of the rear cylinders.

5. The combination in a tender of a locomotive, consisting of a frame; awater receptacle thereon; driving wheels supporting the frame; cylindersmounted on the frame and through which the wheels are driven; saidcylinders having a rear exhaust pipe extending upward; with a sand boxin close proximity to the exhaust pipe so that thesand is heated to theproper degree.

6. The combination in a compound locomotive, of two frames pivotallyconnected; one frame carrying the locomotive boiler and the othercarrying the tender; driving wheels supporting each of said frames;cylinders on each frame; means by which the driving wheels of each frameare independently driven, the cylinders on the boiler frame being thehigh pressure cylinders and the cylinders on the tender frame being thelow pressure cylinders; and pipe connections between the two sets ofcylinders.

In testimony whereof, I have s gned my name to this s ecification, inthe -presence of two subscribmg witnesses. A

. GEORGE R. HENDERSON.

Witnesses:

WM. E. 'SHUPE, WM. A. BARR.

